专利号:US-11332557-B2 优先权日:2019-09-10 标 题 :Methods of controlling ziegler-natta pre-catalyst particles formation and use for olefin polymerization 发明人:FERNANDES JONAS ALVES; OSTACE GEORGE S; HESS DANA 权利人:BRASKEM AMERICA INC 摘要:A colloidal suspension includes an organic phase and a complex of Formula I as precursor for Ziegler-Natta catalyst synthesis:XTiClp(OR1)4-p.YMg(OR2)q(OR3)t  (I).In Formula I, a molar ratio of X to Y (X/Y) is from 0.2 to 5.0, p is 0 or 1, 0 专利号:CN-118146270-A 优先权日:2022-12-06 标 题 :Synthesis and application of a class of modified acenaphthene diimide Ni(II) catalysts for the preparation of branched polyethylene elastomers
专利号:SA-516370910-B1 优先权日:2013-10-10 标题 :A multi-stage process for the production of polyethylene synthesis
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